Well-test analysis for solution-gas-drive reservoirs. Part 3; A unified treatment of the pressure-squared method

Journal Article · Fri Jun 01 04:00:00 EDT 1990 · SPE Formation Evaluation (Society of Petroleum Engineers); (USA)

DOI:https://doi.org/10.2118/18110-PA· OSTI ID:6627986

Serra, K V; Peres, A M.M. ^[1]; Reynolds, A C ^[2]

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1. PETROBRAS, Rio de Janeiro, RJ (Brazil)
2. Tulsa Univ., OK (USA)

This work considers the analysis of radial-flow, well-test pressure data under multiphase flow conditions. The authors show that drawdown- and buildup-pressure data can be analyzed to obtain estimates of effective permeability and the skin factor with a semilog plot of pressure squared vs. time. It is shown that the liquid Matthews--Brons--Hazebroek (MBH) functions can be used to obtain an approximate estimate of average reservoir pressure. A theoretical explanation for semilog analysis method based on the pressure-squared method is presented.

• OSTI ID: 6627986
• Journal Information: SPE Formation Evaluation (Society of Petroleum Engineers); (USA), Journal Name: SPE Formation Evaluation (Society of Petroleum Engineers); (USA) Vol. 5:2; ISSN 0885-923X; ISSN SFEVE
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020200* -- Petroleum-- Reserves
Geology
& Exploration
42 ENGINEERING
420400 -- Engineering-- Heat Transfer & Fluid Flow
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
DATA ANALYSIS
FLUID FLOW
MULTIPHASE FLOW
OIL WELLS
PERMEABILITY
RESERVOIR PRESSURE
RESERVOIR ROCK
SKIN EFFECT
WELLS